linux配置本地DNS

1.1.修改配置檔案

vi /etc/named.conf

listen-on port 53 ;   監聽位址和埠

directory "/var/named"; 資料檔案存放預設目錄
allow-query ; 允許哪些主機來解析網域名稱
recursion yes; 是否支援遞迴
dnssec-enable no; dns安全檢查

vi /etc/named.rfc1912.zones

zone "pl.com" in ;

複製環迴口的正解檔案做格式

cp -a /var/named/named.loopback /var/named/named.pl.com		#加-a使許可權也複製

vi /var/named/named.pl.com

$ttl 1d

@ in soa dns.pl.com. root.localhost (
0 ; serial
1d ; refresh
1h ; retry
1w ; expire
3h ) ; minimum
@ in ns dns.pl.com.
dns.pl.com. in a 10.1.1.161
www in a 10.1.1.162
ftp in a 10.1.1.251

vi /etc/named.rfc1912.zones

zone "1.1.10.in-addr.arpa" in ;

#代表解析10.1.1網段

vi /var/named/named.10.1.1（也可以選擇跟上面一樣先複製乙份格式）

$ttl 1d

@ in soa dns.pl.com. root.localhost (
0 ;serial
1d ; refresh
1h ; retry
1w ; expire
3h ) ; minimum
@ in ns dns.pl.com.
dns.pl.com. in a 10.1.1.161
161 in ptr dns.pl.com.
162 in ptr www.pl.com.
251 in ptr ftp.pl.com.

chown root.named /var/named/named.10.1.1

systemctl restart named

正解

[root@ansible_center ~] dig www.pl.com @192.168.134.128

; <<>> dig 9.11.4-p2-redhat-9.11.4-16.p2.el7_8.3 <<>> www.pl.com @192.168.134.128
;; global options: +cmd
;; got answer:
;; ->>header<<- opcode: query, status: noerror, id: 14681
;; flags: qr aa rd ra; query: 1, answer: 1, authority: 1, additional: 2
;; opt pseudosection:
; edns: version: 0, flags:; udp: 4096
;; question section:
;www.pl.com. in a
;; answer section:
www.pl.com. 86400 in a 10.1.1.162
;; authority section:
pl.com. 86400 in ns dns.pl.com.
;; additional section:
dns.pl.com. 86400 in a 10.1.1.161
;; query time: 0 msec
;; server: 192.168.134.128#53(192.168.134.128)
;; when: thu may 21 08:20:42 edt 2020
;; msg size rcvd: 89

[root@ansible_center ~] dig -x 10.1.1.162 @192.168.134.128	

; <<>> dig 9.11.4-p2-redhat-9.11.4-16.p2.el7_8.3 <<>> -x 10.1.1.162 @192.168.134.128
;; global options: +cmd
;; got answer:
;; ->>header<<- opcode: query, status: noerror, id: 57296
;; flags: qr aa rd ra; query: 1, answer: 1, authority: 1, additional: 2
;; opt pseudosection:
; edns: version: 0, flags:; udp: 4096
;; question section:
;162.1.1.10.in-addr.arpa. in ptr
;; answer section:
162.1.1.10.in-addr.arpa. 86400 in ptr www.pl.com.
;; authority section:
1.1.10.in-addr.arpa. 86400 in ns dns.pl.com.
;; additional section:
dns.pl.com. 86400 in a 10.1.1.161
;; query time: 0 msec
;; server: 192.168.134.128#53(192.168.134.128)
;; when: thu may 21 08:21:16 edt 2020
;; msg size rcvd: 110

[root@ansible_center ~] dig www.py.com @192.168.134.128

; <<>> dig 9.11.4-p2-redhat-9.11.4-16.p2.el7_8.3 <<>> www.py.com @192.168.134.128
;; global options: +cmd
;; got answer:
;; ->>header<<- opcode: query, status: noerror, id: 33248
;; flags: qr rd ra; query: 1, answer: 0, authority: 1, additional: 1
;; opt pseudosection:
; edns: version: 0, flags:; udp: 4096
;; question section:
;www.py.com. in a
;; authority section:
py.com. 600 in soa ns3.dns.com. admin.dns.com. 1546510597 7200 3600 1209600 1800
;; query time: 3551 msec
;; server: 192.168.134.128#53(192.168.134.128)
;; when: thu may 21 06:20:53 edt 2020
;; msg size rcvd: 89

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